Plot twist: The NSA injects a backdoor into the microcode.

:max:

[QUOTE=Enectic;421911]Hey everyone, so does this only affect Skylake processors with hyperthreading? [/QUOTE]

Try this specific test (except the hyperthreading, and from the screenshot change "number of torture test threads to run" to 4 (instead of 8):
[URL="http://www.mersenneforum.org/showpost.php?p=419502&postcount=184"]post #184[/URL]

[QUOTE=Xyzzy;421954]Plot twist: The NSA injects a backdoor into the microcode.[/QUOTE]

No, it was definitely already there. Who are we kidding...

[QUOTE=Madpoo;421982]No, it was definitely already there. Who are we kidding...[/QUOTE]

Maybe they are the ones secretly doing a lot of anonymous work. Gotta find their big prime numbers somehow.

I was able to replicate this finding for 768k:

i7 6700k @ 4GHz
16 GB Crucial Ballistix Sport (BLS8G4D240FSA.M16FAD) @ 2133 MHz
ASUS M. VIII Hero rev. 1.01 (Bios 1302)

After that my PC froze with 800k.

I know that everybody is convinced that this problem only is with 768k FFT, but I couldn't refrain from sharing it.

pegnose

We all will be indeed surprised if the problem only appears for 768k. This was the easiest way to pop the mushroom, but if they have some threading synchronization problem, or whatever else, the problem should appear for other sizes too, and for other programs too. Just that the "kicking frequency" of those other sizes and other programs didn't "resonate" with the bug, so the chances to spot it were lower.

The new Bios was released today. We will see if it solves the problem.

In the news>
[QUOTE]Intel Skylake bug causes PCs to freeze during complex workloads
Ars Technica-Jan 11, 2016
Discovered by mathematicians at the Great Internet Mersenne Prime Search (GIMPS), the bug occurs when using the GIMPS Prime95 ...

Intel Skylake-based PCs freeze during complex workloads
BetaNews-7 hours ago

Is it better to freeze or give bad results? Skylake and complex math ...
PC Perspectives-20 hours ago

Intel confirms Skylake crash erratum
bit-tech.net-Jan 11, 2016

Prime95 can cause Intel Skylake CPUs to freeze
Highly Cited-The Tech Report, LLC-Jan 11, 2016

How to test your PC for the Skylake bug
In-Depth-PCWorld-19 hours ago

More articles (46)[/QUOTE]

It's out there everywhere now... just google "skylake freeze"

Seems as the new MC solves the problem: [url]http://www.bilder-hochladen.net/files/big/hb0a-a3-8e76.jpg[/url]

[QUOTE=Aurum;422069]Seems as the new MC solves the problem: [url]http://www.bilder-hochladen.net/files/big/hb0a-a3-8e76.jpg[/url][/QUOTE]

Fantastic!!! :tu:

Two quick questions if I may... How long have you let this test run for, and what motherboard are you using?